In the 1970s, artist and designer Harry Turner's interest in visual anomalies in drawings made on an isometric grid led to his development of Triad impossible object designs.
Over the next three decades, he developed his designs, creating apparently real singular structures, visual fictions and Islamic-style overall patterns. These two volumes are an exploration of the immense collection of drawings and sketches in his portfolios. His paintings featuring impossible object designs are to be found in The Observer's Guide to Harry Turner's Art
These books contain a wealth of previously unpublished work as well as a section covering published work. Much of the drawn art appeared in science fiction fanzines and small press works. There is also a record of Harry Turner's encounters with academics and others with an interest in images which appear to be drawings of real objects but which, in fact, are impossible artworks.